diff --git a/modules/gltf/editor/editor_import_blend_runner.cpp b/modules/gltf/editor/editor_import_blend_runner.cpp index 330310d92ac..22c8adfe888 100644 --- a/modules/gltf/editor/editor_import_blend_runner.cpp +++ b/modules/gltf/editor/editor_import_blend_runner.cpp @@ -43,6 +43,7 @@ from xmlrpc.server import SimpleXMLRPCServer req = threading.Condition() res = threading.Condition() info = None +export_err = None def xmlrpc_server(): server = SimpleXMLRPCServer(('127.0.0.1', %d)) server.register_function(export_gltf) @@ -54,6 +55,10 @@ def export_gltf(opts): req.notify() with res: res.wait() + if export_err: + raise export_err + # Important to return a value to prevent the error 'cannot marshal None unless allow_none is enabled'. + return 'BLENDER_GODOT_EXPORT_SUCCESSFUL' if bpy.app.version < (3, 0, 0): print('Blender 3.0 or higher is required.', file=sys.stderr) threading.Thread(target=xmlrpc_server).start() @@ -64,12 +69,13 @@ while True: method, opts = info if method == 'export_gltf': try: + export_err = None bpy.ops.wm.open_mainfile(filepath=opts['path']) if opts['unpack_all']: bpy.ops.file.unpack_all(method='USE_LOCAL') bpy.ops.export_scene.gltf(**opts['gltf_options']) - except: - pass + except Exception as e: + export_err = e info = None with res: res.notify() @@ -184,7 +190,9 @@ Error EditorImportBlendRunner::do_import(const Dictionary &p_options) { EditorSettings::get_singleton()->set_manually("filesystem/import/blender/rpc_port", 0); rpc_port = 0; } - err = do_import_direct(p_options); + if (err != ERR_QUERY_FAILED) { + err = do_import_direct(p_options); + } } return err; } else { @@ -259,6 +267,7 @@ Error EditorImportBlendRunner::do_import_rpc(const Dictionary &p_options) { // Wait for response. bool done = false; + PackedByteArray response; while (!done) { status = client->get_status(); switch (status) { @@ -268,7 +277,10 @@ Error EditorImportBlendRunner::do_import_rpc(const Dictionary &p_options) { } case HTTPClient::STATUS_BODY: { client->poll(); - // Parse response here if needed. For now we can just ignore it. + response.append_array(client->read_response_body_chunk()); + break; + } + case HTTPClient::STATUS_CONNECTED: { done = true; break; } @@ -278,9 +290,56 @@ Error EditorImportBlendRunner::do_import_rpc(const Dictionary &p_options) { } } + String response_text = "No response from Blender."; + if (response.size() > 0) { + response_text = String::utf8((const char *)response.ptr(), response.size()); + } + + if (client->get_response_code() != HTTPClient::RESPONSE_OK) { + ERR_FAIL_V_MSG(ERR_QUERY_FAILED, vformat("Error received from Blender - status code: %s, error: %s", client->get_response_code(), response_text)); + } else if (response_text.find("BLENDER_GODOT_EXPORT_SUCCESSFUL") < 0) { + // Previous versions of Godot used a Python script where the RPC function did not return + // a value, causing the error 'cannot marshal None unless allow_none is enabled'. + // If an older version of Godot is running and has started Blender with this script, + // we will receive the error, but there's a good chance that the import was successful. + // We are discarding this error to maintain backward compatibility and prevent situations + // where the user needs to close the older version of Godot or kill Blender. + if (response_text.find("cannot marshal None unless allow_none is enabled") < 0) { + String error_message; + if (_extract_error_message_xml(response, error_message)) { + ERR_FAIL_V_MSG(ERR_QUERY_FAILED, vformat("Blender exportation failed: %s", error_message)); + } else { + ERR_FAIL_V_MSG(ERR_QUERY_FAILED, vformat("Blender exportation failed: %s", response_text)); + } + } + } + return OK; } +bool EditorImportBlendRunner::_extract_error_message_xml(const Vector &p_response_data, String &r_error_message) { + // Based on RPC Xml spec from: https://xmlrpc.com/spec.md + Ref parser = memnew(XMLParser); + Error err = parser->open_buffer(p_response_data); + if (err) { + return false; + } + + r_error_message = String(); + while (parser->read() == OK) { + if (parser->get_node_type() == XMLParser::NODE_TEXT) { + if (parser->get_node_data().size()) { + if (r_error_message.size()) { + r_error_message += " "; + } + r_error_message += parser->get_node_data().trim_suffix("\n"); + } + } + } + + return r_error_message.size(); +} + Error EditorImportBlendRunner::do_import_direct(const Dictionary &p_options) { // Export glTF directly. String python = vformat(PYTHON_SCRIPT_DIRECT, dict_to_python(p_options)); diff --git a/modules/gltf/editor/editor_import_blend_runner.h b/modules/gltf/editor/editor_import_blend_runner.h index 626f3c9ebad..b3b49ebfb28 100644 --- a/modules/gltf/editor/editor_import_blend_runner.h +++ b/modules/gltf/editor/editor_import_blend_runner.h @@ -47,6 +47,7 @@ class EditorImportBlendRunner : public Node { void _resources_reimported(const PackedStringArray &p_files); void _kill_blender(); void _notification(int p_what); + bool _extract_error_message_xml(const Vector &p_response_data, String &r_error_message); protected: int rpc_port = 0; diff --git a/modules/gltf/editor/editor_scene_importer_blend.cpp b/modules/gltf/editor/editor_scene_importer_blend.cpp index 519e2646a01..b474128fd6d 100644 --- a/modules/gltf/editor/editor_scene_importer_blend.cpp +++ b/modules/gltf/editor/editor_scene_importer_blend.cpp @@ -132,12 +132,10 @@ Node *EditorSceneFormatImporterBlend::import_scene(const String &p_path, uint32_ } #endif - source_global = source_global.c_escape(); - const String blend_basename = p_path.get_file().get_basename(); const String sink = ProjectSettings::get_singleton()->get_imported_files_path().path_join( vformat("%s-%s.gltf", blend_basename, p_path.md5_text())); - const String sink_global = ProjectSettings::get_singleton()->globalize_path(sink).c_escape(); + const String sink_global = ProjectSettings::get_singleton()->globalize_path(sink); // Handle configuration options.